Wiki states: "William St John Fremantle Brodrick, 1st Earl of Midleton, KP, PC, DL (14 December 1856 - 13 February 1942), known as St John Brodrick until 1907 and as The Viscount Midleton between 1907 and 1920, was a British Conservative Party and Irish Unionist Alliance politician"

This item was found in a very large collection of genuine autographs, letters and other ephemera purchased at an auction in Cardiff.